VARIABLE CHARGE MOTION APPARATUS OF ENGINE AND DIAGNOSTIC METHOD THEREOF

摘要

The present invention includes a VCM apparatus, and method of use, to create tumble in an engine combustion chamber while suppressing costs of engine manufacture by appropriately diagnosing failure conditions such as a deformation of a flap and a damage of a link connecting the flap to a VCM actuator without the need for an additional sensor mounted near the flap.

主权项

1. A variable charge motion (VCM) apparatus of an engine, comprising:
a flap configured to be rotatably mounted within an intake manifold to create tumble in a combustion chamber; a link configured to deliver an operating force to rotate the flap; a VCM actuator including a motor configured to generate the operating force delivered to the flap via the link; and a controller configured to operate the VCM actuator, wherein an operating range of the motor exceeds the overall normal rotating range of the flap within the intake manifold and both limits of the overall rotating range of the flap, and wherein the VCM actuator is configured to include a motor position sensor configured to:
sense an operating position of the motor in the operation range of the motor exceeding both limits of the overall rotating range of the flap; andtransmit the sensed operating position of the motor to the controller.